'EVA Construction' flips landed crafts on loading F9/savegame in certain situations
GOG KSP 1.11.0 (No Mods/No DLCS)
If Dropping docking ports and probecores into the ground, then picking them up and attaching to a craft will cause the part to seemingly magnetize to the ground attempting to take the entire craft with it
Video Evidence Below:
Doesnt need to be node attached to do it.
Doesnt appear to do it if its already orientated up and down to the ground